| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 3 |
0.3%
|
| 1 | Not at all free | 29 |
2.5%
|
| 2 | Not very free | 56 |
4.7%
|
| 3 | Somewhat free | 249 |
21.1%
|
| 4 | Completely free | 810 |
68.5%
|
| 9 | Don't know | 35 |
3%
|
| 98 | Refused | 0 |
0%
|